Connecting MIDI keyboard into Pro-Tools 003 rack.

[acbt]

Hello,
I am trying to connect a Kurzweil PC88mx MIDI Keyboard Controller using Digidesign Pro-tools10 (version 10.3.9) 003 Rack, and Apple iMac OSX (version 10.11.5).

I have already followed the Audio MIDI setup to configure an external device according to 003 Rack (version 7.3) manual in the "configuring AMS" instruction pages (109 to 111) but still get no sound into an open track session on Pro-Tools.

I have noticed that the MIDI interface (003 rack) is not highlighted in the Audio MIDI setup window. It appears there, but for some reason it is not highlighted.

When playing on the keyboard a little light bulb flashes on my 003 rack (MIDI in), signaling the MIDI cables are working.

I have also tried Setup/Peripherals/MIDI Controllers/HUI; or M-Audio Keyboard (in #1 type), but nothing appears on "receive from" to make a selection in Pro-tools open session.

I have used Pro-Tools for voice recordings (which I have also installed an external preamp and of course a mic) with no problems so far.

Thank you in advance for any advice.